Solving the Canister Conundrum: If It Isn't Authorized for the M40 Series Protective Mask, Don't Use It!

摘要

The M40 series protective mask is a remarkable piece of equipment. It provides face, eye, and respiratory protection in chemical, biological, radiological, and nuclear environments; and it can be worn continuously for 8 to 12 hours. The M40 series replaced the M17 series protective mask as the standard Army field mask in the early 1990s, and it is still produced for field and combat vehicle applications.